Other features of 3D modeling - Introduction to AutoCAD 2011: 2D and 3D Design - page 394

8. Repeat in each of the viewports with different shapes of polygonal
viewport outlines ( Fig. 19.14 ).
Fig. 19.14 Polygonal viewports - plot preview
9. Click the Model button.
10. In each of the polygonal viewports make a different isometric view.
In the bottom right polygonal viewport change the view using the 3D
Orbit tool.
11. Turn the layer vports off. The viewport borders disappear.
12. Click the Plot icon. Make plot settings in the Plot dialog. Click on the
Preview button of the Plot dialog. The Preview appears
( Fig. 19.15 ).
The Navigation Wheel
The Navigation Wheel can be called from the View/Navigate panel
as shown in Fig. 19.14. The reader is advised to experiment with the
Navigation Wheel ( Fig. 19.16 ).